Search a number
-
+
196441281 = 343496949
BaseRepresentation
bin10111011010101…
…11010011000001
3111200122020210000
423231113103001
5400242110111
631254230213
74603503051
oct1355272301
9450566700
10196441281
11a0982273
1255955369
133190c55a
141c137561
15123a4c56
hexbb574c1

196441281 has 20 divisors (see below), whose sum is σ = 294332500. Its totient is φ = 130566816.

The previous prime is 196441277. The next prime is 196441283. The reversal of 196441281 is 182144691.

196441281 is a `hidden beast` number, since 1 + 9 + 644 + 1 + 2 + 8 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 158986881 + 37454400 = 12609^2 + 6120^2 .

It is not a de Polignac number, because 196441281 - 22 = 196441277 is a prime.

It is a super-2 number, since 2×1964412812 = 77178353761841922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196441283) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 24795 + ... + 31743.

It is an arithmetic number, because the mean of its divisors is an integer number (14716625).

Almost surely, 2196441281 is an apocalyptic number.

It is an amenable number.

196441281 is a deficient number, since it is larger than the sum of its proper divisors (97891219).

196441281 is an equidigital number, since it uses as much as digits as its factorization.

196441281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7310 (or 7301 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 196441281 is about 14015.7511750173. The cubic root of 196441281 is about 581.3141831310.

The spelling of 196441281 in words is "one hundred ninety-six million, four hundred forty-one thousand, two hundred eighty-one".

Divisors: 1 3 9 27 81 349 1047 3141 6949 9423 20847 28269 62541 187623 562869 2425201 7275603 21826809 65480427 196441281